BUMBLEBEE FORAGING PREFERENCES: DIFFERENCES BETWEEN
SPECIES AND INDIVIDUALS

A thesis submitted as part of the requirements for the
Degree of B. Sc. (Hons.) in Ecology at the University of Aberdeen 1996.

by Laura Brodie

To publish this on the Internet I have made the following
changes

PLATE 1 in my thesis was made up of scanned images taken
from Prys-Jones & Corbet's excellent book. To use these here would be an
infingement of copyright, so I have replaced the scanned images with digital
photographs of my own that were taken at a later date.

Some of the figures have been re-sized and had their font
size reduced and the legend moved, this was done to keep the file size small
and to take into account the different shape of the monitor screen from the
printed A4 page. The figures have also been integrated more with the text.

3 Results 3.1 Species observed
3.2 Proportion of marked bees re-sighted during bee walk 3.3 The
relative changes in size of the populations foraging in the bee walk area
3.4 Measurements and characteristics of flowers foraged by bees during bee walk
3.5 Species flower preferences 3.5.1 Caste flower preference 3.6
Tongue and head measurements of each species 3.7 Relationship between
tongue length and flower preference 3.8 Flower preferences of individual
bees 3.8.1 Constancy 3.9 Environmental variables and their effects on
foraging